Tysons Corner, VA

Update at 2:50 p.m. — The National Weather Service has issued a Severe Thunderstorm Warning for portions of McLean, Vienna and Tysons.

More from NWS:

THE NATIONAL WEATHER SERVICE IN STERLING VIRGINIA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR… THE NORTHWESTERN DISTRICT OF COLUMBIA… SOUTHEASTERN MONTGOMERY COUNTY IN CENTRAL MARYLAND… NORTHWESTERN PRINCE GEORGES COUNTY IN CENTRAL MARYLAND… EAST CENTRAL LOUDOUN COUNTY IN NORTHERN VIRGINIA… NORTHEASTERN FAIRFAX COUNTY IN NORTHERN VIRGINIA…

* UNTIL 330 PM EDT.

* AT 244 PM EDT, A SEVERE THUNDERSTORM WAS LOCATED OVER RESTON, MOVING EAST AT 25 MPH.

HAZARD…60 MPH WIND GUSTS.

SOURCE…RADAR INDICATED.

IMPACT…DAMAGING WINDS WILL CAUSE SOME TREES AND LARGE BRANCHES TO FALL. THIS COULD INJURE THOSE OUTDOORS, AS WELL AS DAMAGE HOMES AND VEHICLES. ROADWAYS MAY BECOME BLOCKED BY DOWNED TREES. LOCALIZED POWER OUTAGES ARE POSSIBLE. UNSECURED LIGHT OBJECTS MAY BECOME PROJECTILES.

* LOCATIONS IMPACTED INCLUDE… ROCKVILLE, BETHESDA, GAITHERSBURG, RESTON, OLNEY, HERNDON, LANGLEY PARK, VIENNA, LOWES ISLAND, MCLEAN, AMERICAN LEGION BRIDGE, ASPEN HILL, POTOMAC, NORTH BETHESDA, OAKTON, STERLING, NORTH POTOMAC, TYSONS CORNER, HYATTSVILLE AND WHITE OAK.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A BUILDING.

Earlier: Fairfax County and surrounding areas could see some thunderstorms, flash flooding, rain and strong wind today (Monday).

The National Weather Service recently issued a Severe Thunderstorm Watch that will go into effect at 10 p.m. — possibly overlapping with the Flash Flood Watch, which begins at 3 p.m. and lasts until “late tonight.”

The county can expect heavy rain around 1-2 inches that could cause flash flooding later this afternoon and tonight. Strong thunderstorms may hit northwestern Fairfax County, with gusts up to 50 miles per hour.

The National Weather Service also issued a Special Weather Statement:

…SEVERE THUNDERSTORMS POSSIBLE THIS AFTERNOON AND EVENING…

A cold front approaching the region will interact with an unstable airmass to result in showers and thunderstorms. Some of these thunderstorms may become severe, especially between 2 PM this afternoon and 9 PM this evening.

The main threats with these storms will be:
* Damaging wind gusts
* Heavy rainfall and flash flooding
* Frequent lightning

Take time today to review your severe weather action plan. Have a way to receive alerts from the National Weather Service, and be ready to seek safe shelter should storms approach your neighborhood or a warning is issued.

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Stormy Afternoon Ahead With Flash Flood Watch — The National Weather Service issued a Flash Flood Watch for today (Monday) for Fairfax County and surrounding areas from 3 p.m. through late tonight. Thunderstorms and heavy rainfall totaling 1-2 inches are expected. “Much of this rain may fall in short periods of time in any one given location, resulting in the risk for flash flooding this afternoon and tonight.” [NWS]

Georgetown Pike Now Open Again — All lanes of Georgetown Pike (Route 193) between Centrillion Drive and Georgetown Ridge Court in McLean closed for emergency road repairs on Sunday following a fallen tree and wires. The road reopened several hours later. [Twitter]

New Field in Tysons — “Quantum Field officially opened [earlier in July] and players will soon get the chance to enjoy this lighted, state-of-the-art synthetic turf rectangular field.” [Connection Newspapers]

Firefighters Fought Tysons Fire — Firefighters responded to a small fire on roof in the 8600 block of Westwood Center Drive in Tysons West on Sunday. [Twitter]

Langley High School Students Lauded — “Five local high-school students recently received the McLean Citizens Association’s 2019 Outstanding Teen Character Awards for their dedication to the community.” [Inside NoVa]

McLean Resident Lands Federal Agency Role — “The US Senate June 27 voted to confirm Aimee Jorjani as the first full-time chairman of the Advisory Council on Historic Preservation.” Jorjani is a McLean resident. [Connection Newspapers]

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Updated at 2:45 p.m. — NWS canceled the Flash Flood Watch for Fairfax County.

Earlier: Get ready for heavy rain this afternoon and evening.

Fairfax County and surrounding areas are under a Flash Flood Watch starting at 2 p.m. today (Monday).

More from the National Weather Service:

* From 2 PM EDT this afternoon through this evening

* Numerous to widespread showers and thunderstorms are expected this afternoon and this evening in a very warm and humid environment. There is potential for showers to move repeatedly over the same areas and to produce intense rainfall rates in a short period of time that may lead to flash flooding. The greatest risk of flash flooding is across northern and central Maryland.

NWS wants people to monitor the forecast and stay alert to any possible Flash Flood Warnings that may pop up.

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Update 1 p.m. — The National Weather Service has issued a Tornado Watch for the region until midnight with Flash Flood Watch remaining in effect.

Hope you brought a rain jacket, Tysons, because the region is expected to get soaked this afternoon (Friday) through tomorrow morning.

A Flash Flood Watch has been issued for the region, including Fairfax County, with 1.5-2 inches of rain expected but even more possible. More from the National Weather Service:

…FLASH FLOOD WATCH REMAINS IN EFFECT FROM NOON EDT TODAY THROUGH LATE TONIGHT… SHOWERS AND THUNDERSTORMS WITH HEAVY RAIN ARE EXPECTED TO OVERSPREAD THE REGION BY THIS AFTERNOON AND CONTINUE THROUGH THIS EVENING BEFORE DEPARTING LATE TONIGHT. REPETITIVE STORMS AND MULTIPLE ROUNDS OF HEAVY RAIN MAY RESULT IN RAINFALL AMOUNTS WHICH COULD EXCEED 3 INCHES LOCALLY. FLASH FLOODING IS POSSIBLE, PARTICULARLY IN URBAN AREAS AND IN AREAS OF STEEP TERRAIN. PRECAUTIONARY/PREPAREDNESS ACTIONS… A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION. YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION SHOULD FLASH FLOOD WARNINGS BE ISSUED. &&

The flooding potential is of particular concern to parts of the Tysons, McLean and Vienna area that are flood prone.

The potential for severe weather has also prompted some airlines to waive change fees for travel Friday. Forecasters say damaging storms are possible later today.

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If last week’s surprise rainstorm was any indication, the Tysons area is in for a wet spring and some extensive flooding.

Last year was the rainiest on record for the region, which has not only taken a toll on local roads but also hit the area with flooding that has frequently closed streets.

A map put together by the Federal Emergency Management Agency showed the regional flood hazard areas, which unsurprisingly mostly follow local creeks.

Most of the flood hazards around Tysons itself are on the periphery. Old Courthouse Spring Branch just west of the Spring Hill Metro station is vulnerable to flooding, as is Scott’s Run, which runs through Tysons East.

In Vienna, the main flooding hazard is Wolftrap Creek, which runs along the Tysons-Vienna border. There are several low roads through the area, like Old Courthouse Road, which are subject to being washed out during flooding. The area north of Vienna along Piney Branch is also susceptible to flooding.

A 2016 study found that the sewer system along Maple Avenue in Vienna would be unable to handle significant rainfall, but sewer renovations remain unfunded.

In McLean, Dead Run Stream and Pimmit Run are both flood hazard areas, though Dead Run Stream has recently completed a series of revitalization projects whose aim was partially reducing the amount of flooding in the park.

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A steady, soaking rain today may lead to flooding around Fairfax County and Northern Virginia.

The National Weather Service says 1-3 inches of rain will fall today, with the heaviest rain between 10 a.m.-6 p.m. The rain may cause creeks and streams to rise and flood low-lying areas, forecasters say.

More from NWS:

…FLOOD WATCH NOW IN EFFECT FROM 10 AM EDT THIS MORNING THROUGH THIS EVENING… THE FLOOD WATCH IS NOW IN EFFECT FOR * PORTIONS OF MARYLAND, THE DISTRICT OF COLUMBIA, AND NORTHERN VIRGINIA, INCLUDING THE FOLLOWING AREAS, IN MARYLAND, ANNE ARUNDEL, CARROLL, CENTRAL AND SOUTHEAST HOWARD, CENTRAL AND SOUTHEAST MONTGOMERY, FREDERICK MD, NORTHERN BALTIMORE, NORTHWEST HARFORD, NORTHWEST HOWARD, NORTHWEST MONTGOMERY, PRINCE GEORGES, SOUTHEAST HARFORD, AND SOUTHERN BALTIMORE. THE DISTRICT OF COLUMBIA. IN NORTHERN VIRGINIA, ARLINGTON/FALLS CHURCH/ALEXANDRIA, EASTERN LOUDOUN, FAIRFAX, PRINCE WILLIAM/MANASSAS/MANASSAS PARK, AND WESTERN LOUDOUN. * FROM 10 AM EDT THIS MORNING THROUGH THIS EVENING * A WIDESPREAD SOAKING RAIN OF 1 TO 2 INCHES IS EXPECTED. ISOLATED AMOUNTS OF AROUND 3 INCHES ARE POSSIBLE. THE STEADIEST RAIN IS EXPECTED BETWEEN 10 AM THIS MORNING AND 6 PM THIS EVENING, WITH RESIDUAL RUNOFF POSSIBLY PERSISTING THROUGH LATE THIS EVENING. * THESE RAINFALL AMOUNTS MAY CAUSE SMALL STREAMS AND CREEKS TO GO OUT OF THEIR BANKS, AS WELL AS CAUSE FLOODING OF LOW-LYING, URBAN AND POOR DRAINAGE AREAS. PRECAUTIONARY/PREPAREDNESS ACTIONS… A FLOOD WATCH MEANS THERE IS A POTENTIAL FOR FLOODING BASED ON CURRENT FORECASTS. YOU SHOULD MONITOR LATER FORECASTS AND BE ALERT FOR POSSIBLE FLOOD WARNINGS. THOSE LIVING IN AREAS PRONE TO FLOODING SHOULD BE PREPARED TO TAKE ACTION SHOULD FLOODING DEVELOP. &&

Some flight delays have been reported at Reagan National Airport as a result of the rain.

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Tonight’s weather might be ugly, but anyone hoping for another snow day might be out of luck.

The National Weather Service is forecasting a possible one to two inches of snow in the Tysons area from 7 p.m. tonight (Thursday) through 1 p.m. tomorrow (Friday).

NWS has issued a Winter Weather Advisory for the area:

…WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 10 PM THIS EVENING TO 10 AM EST FRIDAY… * WHAT…SNOW AND SLEET EXPECTED. TOTAL SNOW AND SLEET ACCUMULATIONS OF 1 TO 3 INCHES EXPECTED. * WHERE…THE DISTRICT OF COLUMBIA, PORTIONS OF CENTRAL AND SOUTHERN MARYLAND AND NORTHERN AND NORTHWEST VIRGINIA. * WHEN…FROM 10 PM THIS EVENING TO 10 AM EST FRIDAY. A BRIEF PERIOD OF MODERATE TO HEAVY SNOW MAY OCCUR BETWEEN 2 AM AND 6 AM. * ADDITIONAL DETAILS…PLAN ON SLIPPERY ROAD CONDITIONS. THE HAZARDOUS CONDITIONS COULD IMPACT THE MORNING COMMUTE. PRECAUTIONARY/PREPAREDNESS ACTIONS… A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW, SLEET OR FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. EXPECT SLIPPERY ROADS AND LIMITED VISIBILITIES, AND USE CAUTION WHILE DRIVING. WHEN VENTURING OUTSIDE, WATCH YOUR FIRST FEW STEPS TAKEN ON STEPS, SIDEWALKS, AND DRIVEWAYS, WHICH COULD BE ICY AND SLIPPERY, INCREASING YOUR RISK OF A FALL AND INJURY. &&

The Virginia Department of Transportation said on Twitter that it will be spot-brining hotspots — including bridges, ramps, and overpasses — and commuters should plan to adjust travel times or telework.

Citing an “abundance of caution,” tomorrow’s planned Vesper Trail ribbon-cutting event is cancelled and will be rescheduled.

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Fairfax County and surrounding areas will be under a Flood Watch and a Wind Advisory on Thursday, as heavy rain and strong winds rake across the region.

About 1-2 inches of rain is expected to fall starting tonight through midday Thursday, potentially causing flooding in low-lying areas and along streams and creeks.

More from the National Weather Service:

…FLOOD WATCH REMAINS IN EFFECT… * FROM LATE TONIGHT THROUGH THURSDAY AFTERNOON * RAIN WILL OVERSPREAD THE AREA THIS EVENING AND OVERNIGHT. THE HEAVIEST RAIN IS EXPECTED OVERNIGHT AND THURSDAY MORNING. TOTAL RAINFALL AMOUNTS AROUND 1 INCH ARE EXPECTED, WITH ISOLATED HIGHER AMOUNTS OF 1.5 TO 2 INCHES POSSIBLE. * EXCESS RUNOFF FROM A NEARLY FROZEN GROUND AND SATURATED SOILS WILL CAUSE THE POTENTIAL FOR STREAMS AND CREEKS TO RISE OUT OF THEIR BANKS AS WELL AS POTENTIAL FLOODING IN LOW LYING URBAN AREAS. PRECAUTIONARY/PREPAREDNESS ACTIONS… A FLOOD WATCH MEANS THERE IS A POTENTIAL FOR FLOODING BASED ON CURRENT FORECASTS. YOU SHOULD MONITOR LATER FORECASTS AND BE ALERT FOR POSSIBLE FLOOD WARNINGS. THOSE LIVING IN AREAS PRONE TO FLOODING SHOULD BE PREPARED TO TAKE ACTION SHOULD FLOODING DEVELOP. &&

In addition to the rain, damaging winds are possible.

…WIND ADVISORY IN EFFECT FROM 6 AM TO NOON EST THURSDAY… THE NATIONAL WEATHER SERVICE IN BALTIMORE MD/WASHINGTON HAS ISSUED A WIND ADVISORY, WHICH IS IN EFFECT FROM 6 AM TO NOON EST THURSDAY. * TIMING…THURSDAY MORNING. * WINDS…SOUTHWEST 20 TO 30 MPH WITH GUSTS UP TO 50 MPH. * IMPACTS…GUSTY WINDS WILL BLOW AROUND UNSECURED OBJECTS. TREE LIMBS COULD BE BLOWN DOWN AND A FEW POWER OUTAGES MAY RESULT. PRECAUTIONARY/PREPAREDNESS ACTIONS… A WIND ADVISORY MEANS THAT WINDS OF 45 TO 55 MPH ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT, ESPECIALLY FOR HIGH PROFILE VEHICLES. &&

More via Twitter:

Photo (top) via National Weather Service

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Morning Notes

Fairfax County’s Big Job Adds — “Fairfax County’s Economic Development Authority worked with 164 companies in calendar year 2017 to add, eventually, nearly 8,200 jobs. Three announcements, including a doozy from Amazon Web Services, accounted for 70 percent of that total… The Transportation Security Administration’s 2020 relocation from Pentagon City to Springfield: 3,000 jobs. AWS’ East Coast hub in Herndon: 1,500 jobs. And Favor TechConsulting, a Tysons-based minority-owned and service-disabled veteran-owned government contractor: 1,200 jobs.” [Washington Business Journal]

What’s Closed for New Year — “Fairfax County offices will be closed Tuesday, Jan. 1, 2019, while schools, parks and other services will be closed Dec. 31 and Jan. 1. Some services like transit will be during New Year’s Eve events. Services will resume Tuesday, Jan. 2 unless noted.” [Patch]

Flood Watch in Effect — Expect periods of rain today. The National Weather Service has issued a Flood Watch for much of the region through late tonight. “Excessive runoff from already saturated soils will cause the potential for streams and creeks to rise out of their banks as well as flooding in low lying urban areas,” forecasters say. [Weather.govTwitter]

Rainy Weather Driving Tips — “The Virginia Department of Transportation (VDOT) has some good guidance for safe driving in the rain, like keeping extra distance between your vehicle and the vehicle in front of you. Also, turn on your lights anytime it’s raining.” [Fairfax County Fire, YouTube]

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Morning Notes

Reminder: Change Your Clocks and Smoke Alarm Batteries — “We move our clocks back one hour early Sunday morning. You also need to remember that when you change your clock, our firefighters and paramedics want you to check your smoke alarms to ensure they are working.” [Fairfax County Fire and Rescue]

Rainy Weather Prevented Paving in Vienna — The Town of Vienna “was unable to complete about $100,000 worth of paving and pavement marking work earlier this year because of poor weather, said Finance Director Marion Serfass.” [InsideNova]

100th Birthday Party in McLean — “Ann Ames Groves Gurman, formerly of Arlington and now living at Vinson Hall Retirement Community in McLean, celebrated her 100th birthday last weekend. Born on Oct. 26, 1918, Ann Ames grew up in Arlington. She was Miss Arlington in 1936 before going off to college. ” [McLean Connection]

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